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C. F. BRANDENBERGER 6; M. W. REUTHER.

SUCTION PUMP.

APPLICATION FILED JAN. 4, I916.

Patented Aug.

5 inventor Attorneys CARL BRANDENBERGER AND MARTI N W. REUTI-IER. 0F FORT MADISON, IOWA.

SUCTION-PUMP.

Specification of Letters Patent.

Patented Aug. 15, 1916.

Application filed January 4, 1916. Serial No. 70,210.

of the United States, residing at Fort Madi-' son, in the county of Lee, State of Iowa, have invented a new and useful Suction- Pump, ofwhich the followingis a specification.

The present invention appertains to pumps, and aims to provide an air chamber and drain storage for suction pumps, said device allowing the head of the water to drain down through the piston or plunger into the chamber to be stored therein, sufficiently below the surface of the soil to avoid'the freezing of the water, the water flowing into the pump barrel or cylinder as soon as the piston is operated, to prime the pump quickly and effectively.

The present invention embodies an air chamber in communication with the barrel of the pump above the lower check valve,

there being a check valve between said air chamber and the piston, the Valve of the piston and the second mentioned check valve each being apertured so that the headof water supported above the lower check valve can drain downwardly through the piston and second mentioned check valve into the air chamber, in order that the water level can lower sufiiciently below the surface of the soil to prevent freezing. The present device does not impair the utility of the pump,

but to the contrary enhances the efliciency thereof, and eliminates the freezing of the water.

It is also ithin the scope of the invention to provide 2:11 appliance of the nature indicated Which 1s comparatively simple and inexpensive in construction, which can is readily installed upon various pumps, and which will serve its office in a thoroughly practical, reliable, and eflici'ent manner.

With the foregoing and other objectsin view. which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed can be made within the scope of what is claimed without departing from the spirit of the invention.

The invention is illustrated in the accompanying drawing, wherein Figure 1 is a fragmental vertical section of a pump illustrating one form of the incheck valve forming a part of the invention.

Fig. 3 is a view similar to Fig. 1 of a modified form adapted especially for use in wells ofsmall diameter. Fig. 4 is an enlarged cross section on the line 44 of Fig. 3. Fig. 5 is a view-similar to Figs. 1 and 3 of another variation. I

Referring specifically to Figs. 1 and 2, the pump illustrated thereinembodies a vertical barrel or cylinder 1 having attached to its upper end a reducer 2 connected to the lower end of the upper pipe section 3 of the pump. A reducer 4 is engaged to the lower end of the barrel 1 and is connected to the upper end of the lower pipe section 5, so that the barrel is interposed in the ordinary manner in the suction pipe. The reducer 4 is provided with a valve seat 6 for v the lower check or clack valve 7 having the as usual, and has an arched-spider 10 connected to the lower end of the plunger rod 11 which projects upwardly through the pipe section 3 to be reciprocated in the ordinary manner. The piston 9 has the usual opening 12 and surroundingvalve seat upon which is seated a check valve 13 within the spider 10.

. The foregoing parts are common in suction pumps, the barrel 1 being located several feet below the surface of the soil within the well, or below the frost line.

In carrying out the invention, a laterally or horizontally projecting pipe 14 has one end attached to one side of the barrel 1 adjacent the lower end thereof and immediately above the lower check valve 7, and the other end of said pipe 14 is upturned and connected to the lower end of an air chamber 15. A check valve is interposed in the pipe 14, the same embodying a casing 16 interposed in said pipe, and having a partition 17 therein provided with a by-pass the water is drawn out of said chamber. The. valve has a depending guide stem 21 to hold the valve in place, and said valve also has an upstanding stem 22 working within the recess 23 with which the cap 19 ofthe casing 16 is provided. Thevalve 20 is provided with a restricted aperture24 therein allowing for the restricted flow of water therethrough even though the valve 20 is seated. The check valve 13 of the piston 9 is also provided with a restricted aperture 25, which does not materially aifect the operation of the pump, but which allows the water above the piston to drain downwardly through the said valve 13 when the pump is idle. The barrel 1 has an outstanding boss 26 to which the pipe 14 is connected and said boss is located below the piston 9.

-When the pump is in operation, the reciprocation of the piston 9 elevates the water in the ordinary manner, the check valve 7 supporting the head of the water, and

the piston 9 lifting the column of water intermittently. The suction created extends into the chamber 15 to draw the water therefrom and to rarefy the air therein, the valve 20 unseating when the piston 9 is raised, and seating when the piston is lowered. This tends to create a vacuum within the chamber 15 during the operation of the pump. As soon as the operation ofthe piston 9 is stopped, the suction in being relieved within the chamber 15 will allow the air therein to resume normal conditions, and this will draw the water from the barrel 1 into the chamber 15, said .Water flowing through apertures 24 and 17 past valve 20. The head of water above the piston 9 can drain downwardly through the aperture 25 to flow past the piston and thence to and through the pipe 14 into the chamber 15.

It will thus be seen that when the pump is idle, the head of water will drain downwardly through the piston so as to be drawn into the chamber 15, and since said chamber is below the frost line, the water therein will not freeze, and this will prevent the freezing of the pump sincethe water level therein will be lowered sufficiently to avoid this. When the pump is again started, the upward movement of the piston 9 will create a suction within the lower portion of the barrel 1, thereby drawing the water quickly from the chamber 15, to prime the pump, the valve 20 unse'ating to allow the water to flow uickly from the chamber 15 into the barriil 1.

The form of the invention illustrated in Fig. 1 can be used in wells of larger diameter, and when the device is to be used in a drilled or small-diametered well, the form illustrated in Figs. 3 and 4 is preferably employed. The parts designated 1 and 13, inclusive, in Figs. 3 and 4 are the same as the similarly numbered parts in Fig. 1, so

5 bottom of the chamber 15.

the lower end of the barrel 1. A vertical pipe 14 has its upper end engaged with the reducer 16 and is threaded or otherwise engaged downwardly through the upper end of the chamber 15 to project downwardly therein to a point adjacent the lower end or The aperture of the boss 26 is closed by a plug 27, and the pipe 14 is provided, with an aperture 28 adjacent the upper end or top of the chamber 15. A lock nut 50 is threaded on the pipe 14 to seat on the chamber 15 to prevent leakage. In the modified form, the a valve 20' resembles the valve 20 above described, the pipe 14 resembles the pipe 14, and the chamber 15' resembles the chamber 15. During the operation of the piston 9, the water is sucked upwardly past the lower check valve 7 through the chamber 15 and pipe 14 past the valve 20 into the barrel 1 to be raised by the piston, it being noted that the suction created by the piston will rarefy the air within the chamber 15' above the lower end of the pipe 14. Therefore, as soon as the pump is stopped, the head of water can drain downwardly through the piston and aperture 24' of the valve 20' to flow downwardly through the pipe 14 into the chamber 15', so that the water will be stored within said chamber below the frost lines The aperture 28 permits of the flow of air from and into the upper portion of the chamber 15. As soon as the pump is started, the suction will draw the water from the chamber 15.

The variation illustrated in Fig. 5 is a combination of the. two forms illustrated in Figs. 1 and 3, as will be obvious by referring to said figures and comparing the reference characters. A vertical coupling 29 connects the reducers 4 and 16' and has a lateral boss 30 to which is connected the pipe-14" attached to the lower end of the upright air chamber 15. The operation of the structure illustrated in Fig. 5, will be readily understood from the foregoing,

provided an air chamber having its lower portion in communication with the lower portlon of the pump barrel or cylinder below the plston and above the lower check and havin valve, the piston being provided with a restricted aperture to allow the water thereabove to drain downwardly, and a check valve being disposed between the chamber ,and pump barrel to seat toward said chamber and having a restricted aperture to allow the water to flow from said barrel into said chamber. These are salient features of the invention, although it is evident that the several forms have details which are of advantage.

Having thus described the invention, what is claimed as new is:

The combination with a pump embodying an upright barrel, a piston working therein a check valve provided with a restricted rain aperture, and a lower check valve for supporting the headof water, of

an air chamber having its lower portion in communication with the lower portion of said barrel below the piston and above said check valve, and a check valve between said barrel and chamber and seating toward said chamber, the last mentioned valve having a restricted aperture.

In testimony that we claim the foregoing as our own, we have hereto aflixed our signatures in the presence of two witnesses.

CARL F. BRANDENBERGER. MARTIN W. REUTHER.

Witnesses:

E. W. BEEIMAN, Faun Horne. 

